GR3007355T3 - - Google Patents
Info
- Publication number
- GR3007355T3 GR3007355T3 GR930400554T GR930400554T GR3007355T3 GR 3007355 T3 GR3007355 T3 GR 3007355T3 GR 930400554 T GR930400554 T GR 930400554T GR 930400554 T GR930400554 T GR 930400554T GR 3007355 T3 GR3007355 T3 GR 3007355T3
- Authority
- GR
- Greece
- Prior art keywords
- polarization
- received light
- angle
- light
- dpsk
- Prior art date
Links
- 230000010287 polarization Effects 0.000 abstract 3
- 230000003287 optical effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/61—Coherent receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/61—Coherent receivers
- H04B10/615—Arrangements affecting the optical part of the receiver
- H04B10/6151—Arrangements affecting the optical part of the receiver comprising a polarization controller at the receiver's input stage
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/61—Coherent receivers
- H04B10/64—Heterodyne, i.e. coherent receivers where, after the opto-electronic conversion, an electrical signal at an intermediate frequency [IF] is obtained
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Instruments For Measurement Of Length By Optical Means (AREA)
- Gyroscopes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863621734 DE3621734A1 (de) | 1986-06-28 | 1986-06-28 | Optischer ueberlagerungsempfaenger |
Publications (1)
Publication Number | Publication Date |
---|---|
GR3007355T3 true GR3007355T3 (de) | 1993-07-30 |
Family
ID=6303934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GR930400554T GR3007355T3 (de) | 1986-06-28 | 1993-03-16 |
Country Status (9)
Country | Link |
---|---|
US (1) | US4856093A (de) |
EP (1) | EP0250819B1 (de) |
JP (1) | JP2718677B2 (de) |
CN (1) | CN1005952B (de) |
AT (1) | ATE86053T1 (de) |
DE (2) | DE3621734A1 (de) |
ES (1) | ES2040219T3 (de) |
GR (1) | GR3007355T3 (de) |
YU (1) | YU117987A (de) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1290019C (en) * | 1986-06-20 | 1991-10-01 | Hideo Kuwahara | Dual balanced optical signal receiver |
DE3630619A1 (de) * | 1986-09-09 | 1988-03-17 | Standard Elektrik Lorenz Ag | Optischer ueberlagerungsempfaenger |
NL8602864A (nl) * | 1986-11-12 | 1988-06-01 | Philips Nv | Inrichting voor optische heterodyne detektie van een optische signaalbundel en optisch transmissiesysteem voorzien van een dergelijke inrichting. |
US4829598A (en) * | 1987-01-22 | 1989-05-09 | Siemens Aktiengesellschaft | Optical receiver with an optical coupler and an electronic amplifier |
US5477369A (en) * | 1987-04-20 | 1995-12-19 | U.S. Philips Corporation | Device for optical heterodyne or homodyne detection of an optical signal beam and receiver provided with such a device |
JP2562623B2 (ja) * | 1987-10-28 | 1996-12-11 | 国際電信電話株式会社 | ベースバンド合成法による偏波ダイバーシティ光受信方式 |
JPH01123538A (ja) * | 1987-11-07 | 1989-05-16 | Nec Corp | 光平衡伝送回路 |
JPH0734080B2 (ja) * | 1988-10-20 | 1995-04-12 | 富士通株式会社 | コヒーレント光通信用ヘテロダイン検波受信装置 |
JP2540935B2 (ja) * | 1989-03-16 | 1996-10-09 | 日本電気株式会社 | 一括偏波制御方法 |
US4979235A (en) * | 1989-04-17 | 1990-12-18 | Tektronix, Inc. | Polarization controller for use in optical fiber communication system |
US5060311A (en) * | 1989-06-06 | 1991-10-22 | Siemens Aktiengesellschaft | Method and apparatus for obtaining phase or polarization insensitive optical heterodyne reception for dpsk or ask-modulated transmission signal |
EP0401557A3 (de) * | 1989-06-06 | 1991-10-02 | Siemens Aktiengesellschaft | Verfahren zur Realisierung eines phasen- oder/und polarisationsunempfindlichen Überlagerungsempfangs für ein FSK-moduliertes Sendesignal |
US5253309A (en) * | 1989-06-23 | 1993-10-12 | Harmonic Lightwaves, Inc. | Optical distribution of analog and digital signals using optical modulators with complementary outputs |
US5077728A (en) * | 1989-12-20 | 1991-12-31 | At&T Bell Laboratories | Frequency division multiple access network |
NL9002713A (nl) * | 1990-12-10 | 1992-07-01 | Nederland Ptt | Transmissiesysteem voor de polarisatie-ongevoelige overdracht van signalen. |
JP2776124B2 (ja) * | 1992-03-23 | 1998-07-16 | 日本電気株式会社 | 直接検波光受信装置 |
JPH05303128A (ja) * | 1992-04-27 | 1993-11-16 | Nec Corp | イメージ信号除去光ヘテロダイン検波受信装置 |
US5311346A (en) * | 1992-06-17 | 1994-05-10 | At&T Bell Laboratories | Fiber-optic transmission polarization-dependent distortion compensation |
US6782211B1 (en) * | 1998-11-05 | 2004-08-24 | Mark T. Core | Cross polarization interface canceler |
US6548801B1 (en) * | 2000-01-13 | 2003-04-15 | Agilent Technologies, Inc. | System and method for optical heterodyne detection of an optical signal |
US6970250B1 (en) * | 2000-01-20 | 2005-11-29 | Agilent Technologies, Inc. | Method and system for optical heterodyne detection of an optical signal that utilizes optical attenuation |
US6259529B1 (en) * | 2000-02-17 | 2001-07-10 | Agilent Technologies, Inc. | Wavelength-selective polarization-diverse optical heterodyne receiver |
US6256103B1 (en) * | 2000-02-17 | 2001-07-03 | Agilent Technologies, Inc. | System and method for optical heterodyne detection of an optical signal |
US6583903B1 (en) * | 2000-03-02 | 2003-06-24 | Worldcom, Inc. | Method and system for controlling polarization mode dispersion |
US6535289B1 (en) * | 2000-06-02 | 2003-03-18 | Agilent Technologies, Inc. | System and method for optical heterodyne detection of an optical signal |
US7106967B2 (en) * | 2001-09-04 | 2006-09-12 | Doron Handelman | Optical packet switching apparatus and methods |
JP4170298B2 (ja) * | 2005-01-31 | 2008-10-22 | 富士通株式会社 | 差分4位相偏移変調方式に対応した光受信器および光受信方法 |
EP1833215A1 (de) * | 2006-03-10 | 2007-09-12 | Harris Broadcast Systems Europe | Erkennung von überhöhter Signalleistung |
US7809284B2 (en) * | 2006-06-23 | 2010-10-05 | Alcatel-Lucent Usa Inc. | System and method for receiving coherent, polarization-multiplexed optical signals |
CN100451667C (zh) * | 2007-04-06 | 2009-01-14 | 中国科学院上海光学精密机械研究所 | 光电外差探测电路 |
US7873286B2 (en) * | 2007-10-19 | 2011-01-18 | Ciena Corporation | Optical receiver systems and methods for polarization demultiplexing, PMD compensation, and DXPSK demodulation |
WO2015018947A1 (en) | 2013-08-09 | 2015-02-12 | Technical University Of Denmark | Wireless distributed antenna mimo |
PL3103202T3 (pl) | 2014-02-07 | 2018-07-31 | Danmarks Tekniske Universitet | Dekodowanie sygnału modulowanego metodą połączonej modulacji amplitudy i częstotliwości |
US10367588B2 (en) * | 2017-03-21 | 2019-07-30 | Bifrost Communications ApS | Optical communication systems, devices, and methods including high performance optical receivers |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1057170B (de) * | 1957-02-19 | 1959-05-14 | Rohde & Schwarz | Anordnung und Verfahren zur Umwandlung einer amplituden-getasteten Traegerschwingung |
US3971930A (en) * | 1974-04-24 | 1976-07-27 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Polarization compensator for optical communications |
JPS57125557A (en) * | 1981-01-29 | 1982-08-04 | Nec Corp | Demodulator |
JPS59122140A (ja) * | 1982-12-28 | 1984-07-14 | Nec Corp | 光ヘテロダイン検波装置 |
JPS60184229A (ja) * | 1984-03-02 | 1985-09-19 | Nec Corp | 光ヘテロダイン・ホモダイン検波受信装置 |
JPS60242435A (ja) * | 1984-05-17 | 1985-12-02 | Nec Corp | 偏波ダイバ−シテイ光受信装置 |
JPS6123121A (ja) * | 1984-07-12 | 1986-01-31 | Nec Corp | 光ヘテロダイン受信方法 |
GB8514264D0 (en) * | 1985-06-06 | 1985-07-10 | British Telecomm | Coherent optical receivers |
US4718120A (en) * | 1986-11-24 | 1988-01-05 | American Telephone And Telegraph Company, At&T Bell Laboratories | Polarization insensitive coherent lightwave detector |
-
1986
- 1986-06-28 DE DE19863621734 patent/DE3621734A1/de not_active Withdrawn
-
1987
- 1987-05-16 EP EP87107102A patent/EP0250819B1/de not_active Expired - Lifetime
- 1987-05-16 ES ES198787107102T patent/ES2040219T3/es not_active Expired - Lifetime
- 1987-05-16 AT AT87107102T patent/ATE86053T1/de not_active IP Right Cessation
- 1987-05-16 DE DE8787107102T patent/DE3784272D1/de not_active Expired - Fee Related
- 1987-06-24 YU YU01179/87A patent/YU117987A/xx unknown
- 1987-06-26 JP JP62159524A patent/JP2718677B2/ja not_active Expired - Lifetime
- 1987-06-27 CN CN87104453.6A patent/CN1005952B/zh not_active Expired
- 1987-06-29 US US07/067,960 patent/US4856093A/en not_active Expired - Fee Related
-
1993
- 1993-03-16 GR GR930400554T patent/GR3007355T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
EP0250819A3 (en) | 1989-07-26 |
EP0250819B1 (de) | 1993-02-24 |
JP2718677B2 (ja) | 1998-02-25 |
DE3621734A1 (de) | 1988-01-07 |
EP0250819A2 (de) | 1988-01-07 |
DE3784272D1 (de) | 1993-04-01 |
ATE86053T1 (de) | 1993-03-15 |
YU117987A (en) | 1989-06-30 |
CN87104453A (zh) | 1988-01-27 |
ES2040219T3 (es) | 1993-10-16 |
JPS6325632A (ja) | 1988-02-03 |
CN1005952B (zh) | 1989-11-29 |
US4856093A (en) | 1989-08-08 |
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